Machine for packing explosive gelatin dynamite.



W. I. DONALDSON. MACHINE FOB. PACKING EXPLOSIVE GELATIN DYNAMITE.

APPLICATION FILED MARS, 1907.

Patented Mar. 9, 1909.

2 SHEETS-SHEET l.

WITNESSES:

W. I. DONALDSON. MACHINE FOR PACKING EXPLOSIVE GELATIN DYNAMITE.

APPLIGATION FILED MAR.8, 1907.

Patented Mar. 9, 1909.

a SHEETS-SHEET 2.

F/QZA.

m R m N d W. m w p M f v 2 M 3 W V W B I /4.

I within the flared hopper; yet

lklrl I. DOIJALDSON, O1 PAULSBORO, NEW JERSEY,

POWDER COMPANY, OF WILMINGTON, DELAWARE, A CORPORATION OF WILL '.\ UMO J .I Pl? JERSEY.

in k ASSIGNOR TO THE E. I. DU PONT DE.

MAGEINE FOB PACKING EXPLOSIVE GELATIN DYNAMITE.

Specification oi Letters Patent.'

Patented March e, 1909.

Application filed March 8, 3.907. Serial No. 361,259.

To (111. 11-720). it W1 concern:

5:? n can that l, WILLIAME. DONALD is o i. inneo k Liltfib, 1 i

oven Ullttiill Dynamite, of which the llllll. I

reuse being had to the accompany mg drawings, {VlllCll form aiinirt of this snecii i 1 1 C schine ernhodyiiig my invention is, sking, like L illustrated. and e r: application ed hy Thomas rims, Oetoher 2d, 1906, Serial Rum es 7, U9, and the machine need not, there 2, he herein specific-ally described. The present invention relates to certain improvements upon that machine. in the machine of that application the explosive gelatin fed from a cylindrical hopper, by 11106-113 of it screw through openings provided i ith nozzles into the shells carried by a ceriier, the nozzles projecting into the shells during the asking operation. In the construction or that machine, dependence for feeding was 'cleeed entirely upon the feeding screw, for, wnile there was flaring top to the upper end ,or the cylindrical hopper, gravity 5 \ilepended upon to carry the material I ion. I here improved this portion of in chine by placing upon the shaft, rotating ill) screw in the cylindrical hopper, end portion above the cylindrical hopper, a plurality of blades with their faces set st an angle, so that where there is substantially no resistance they will posilively force the niz'i-tcriol into the cylindrical.

son who ettends to the shell carriers to ale is a lull, clear, and exact descriporthe enlerged portion to the cylindrical ii there s ten-.lency to iorcc l tBZ'HllZlS when the shells are filled with the materiel. In the improvementof this invention I provide means for accurately de l terinining the time when the shell is tilled. 1 1n the machine ofprevious application, as in this machine, the shell Ci-LI'llQI',W1 -TL being filled. is supported upone piston in an. air cylinder which descends during the filling oi the shell. l have added an indicating device, which, when the shell c-Lm-ier has descended to the point corresponding to e filled shell, is operated to give o signal. in the preferred -iorin shown a trip is carried by the carrier, which, on its descent to apoint, corresponding to the filled shell, opens a valve, admitting air to a whistle or indi :aiiiig (ls-- vice. I j

l have further improved the inschine by an arrangement i'vherehythe opening oi" the valve to allow the shell carrier elevating mechanism to descend, sin'mltaneously shifts the clutch to stop the rotation of the feed serew and operates the valve controlling the elevation of the feed screw, so that the feed screw is elevated out of operative relation to the hopper when. the shell carrier descends.

to be withdraws and vice versa. I will now describe my invention as illustrated in the accompanying drawings, and then point out the invention in the claims.

Figure 1 is an elevation of part of the ma chine showing embodiment of my invention. Fig. 1 is a detail View, showing valve 3 and appurtenances in. position of l ig. 1. Fig. 2 is a partisl end riew of Fig. 1. Fig. 2 is 2. View corresponding to Fig. 1 with valve in position of '2. Fig. 3 is a plan View of h0pper. Fig. is a detail sectional View of hopper wits shaft screw and blades. 1 a is cylindrical hopper having the flared conical portion 2) at its upper end.

\ c is the screw within the hopper a and :1 pen the shaft o. through the flared conical portion 1). Upon this shaft (1 and within the flared portion 5 are the blades 6, the faces of which are inelined, as shovm. Upon the shaft d is spiined the bevel gear f meshing with the bevel gear 5; on the shaft h.

'i is e cluteh cont-yelled by lever This shaft (Z extends upward formed by'an orificedplate from the orifices of which project the nozzles 02.

0 is tllile shglll carrier.

is t e ta e carrym' the shell carrier, and by which it is rotated g ment with'the hop er a. The carrier has, projectmg from'its ower portion, the in g, which passes through an orifice in the ta ble p.

8 1s a cylinder and t'a piston in said cylinder. Thpn 0 p1 eu,w 'c i euisb i e20connected with the pipe g leading fl'o m a source of air pressure supply, as shown, the accumulator or lpressure tank 40. Upon the pipe 20 is a va vs 20, adapted to connect p1pe 20 with either the pipe '0 or the atmos here.

:u is a pipe connected with t e ipe 'v. This. p1pe :1: opens into the valve cylinder y and opposite pipe 2: is a pipe 1 from the .cylinder, eading to a whistle or other signal 2. In the cylinder y is the valve 3, having through it,

" the passage 4. In one position of the valve 3 this passage 4 connects the pipes a: and 1 and air operates the whistle or signal 2. Between the upper face of the valve 3 and the cylinder y is a spring 5. Carried by .the piston t is a projecting pin or lug 6 which, in the upward movement of the piston, strikes the stem of valve 3, forcing the valve 3 u ward, compressing the spring 5. On t e downward movement the spring 5 causes the valve 3' to follow downward. When the shell carrier 0, with its shells, in the rotation of the table p, is brought in alinement with the noz- -zles n and the pin 9 in alinement with "the piston t, the valve'w is operated to admit air to pipe u and the piston t is elevated, elevating t e carrier 0 and its shells until thenozzles n enter the shells. During this upwardmovement the passage 4 connects the pipes a: and 1 but as the upward movement is quite ra id, there is no substantial action u on the wliistle. When the shells are fille and further attempt to add thereto creates a causing the carrier to slowly descen and in the descent, when the passage 4 connects I pipes a: and 1, the downward movement belngslow, an appreciable signal is given. The re ation of the assage 4, pipes a: and 1, and lug 6 are such t at this actiontakes place at the initial downward movement, and thus,

ractically, at the time the shell is filled.

hus, to the operator is automatically indicated when the shells are filled, and all necessity of manual action to determine this condition is avoided. When the whistle or indicator signals the 0 eration of the feed screw is,

stopped and t e valve 110 operated to connect pipe u and the atmos here, and the piston descends rapidly to its initial position, enabling "22. into andout of alinei linder is connected with theressure,,

the table p to berotated'to remove the shell earner to other points for other operations, and the bringing into action of another shell carrier to have its carried shells filled.

' The shaft cl is connected to. the iston rod of a piston 21 in the cylinder 22. e 1P8 it connects with the up or portion of cylinder The lower end 0 cyhnder 22 is connected by pipe 23 with pipe '0. On pipe 23 is a valve 24. The valves 24 and 'w have their piplgating levers connected by links 26, which which main lever 27 is also connected the le' ver Z. When the main lever 27 is operated in one direction valve w is opened to atmosphere, causin the air to exhaust from below piston t and om above piston 21, and the valve 24 o ened to admit'pressure to pipe 23 and to s t the clutch i, so that the carrier 0 descends, the shaft d is elevated and the rotation of the shaft d is stopped. -In the opposite movement of the lever 2 7.the ipe 23 is opened to exhaust and pressure is a mitted by ipe u to the top of cylinder 22, moving sha t d downward, and to the bottom of cylinder s, elevating piston t and carrier 0, and the clutch is moved to cause engagement between shaft h and pulley m and the shaft (1 rotates.

are connected to the main lever 27, to

- Having now fully described my invention,.

what I claimand desire to Patent is- 1. In a machine of the character described, in combination, a cylindrical hop erand a conical hopper communicating 'Wlt said cyprotect by Letters 'lindrical holpper, a conveying screw in said cylindrical faces of whic hop er, and means to rotate stud screw and 0 per and blades, the operative bla es, said'blades being supported so as to 1 I v t be vertically movable; I

2. In a machine of the character described, in combination, a conical hopper, a cylindrical hopper in which said conical hopper terminates, blades, the operative faces 0 which are inclined, in said conical hopper, and a.

screw in the cylindrical-hopper, and means to revolve said screw and blades, said bladesbeare inclined, in the conical ing suIpported so as to be vertically movable. l

n a machine of the character described,

in combination, a cylindrical hopper, a' con-- cylinder and piston therein, and connection 3 between said piston and shaft,- of a pipe to the lower portion of the shell carrier piston cylinder, a )ipe to the upper portion of the s aft cylin er, a source of pressure supply and means to simultaneously connect said pipes with the pressure su ply. I

5. In a machine of the e aracter described, the combination with the cylinder and the shell carrier lifting piston therein, the honpe-r and feeding screw shaft therein, the s aft cylinder and pistontherein, and connection between said piston and shaft, of a pipe to the lower portion of the shell carrier piston cylinder, a pipe to the upper portion of the shaft cylinder, a source of pressure supply, an exhaust and means to simultaneously connect said pipes with either the air pressure or exhaust.

6. In a machine of the character described, the combination with the cylinder and the shell carrier lifting piston therein, the be per and feeding screw shaft therein, the siaft cylinder and piston therein, and connection between said piston and shaft, of a pipe to the lower portion of the shell carrier piston cylinder, a pipe to the upper portion of the shaft cylinder, a source of pressure supply, clutch mechanism controlling the rotation of the feed shaft, and means to simultaneously connect said pipes with the air pressure supply and o crate the clutch toengage the shaft.

7. n a machine of the character described, the combination with the cylinder and the shell carrier lifting piston therein, the hopper and feeding screw shaft therein, the shaft cylinder and piston therein, and connection between said piston. and shaft, of a pipe to the lower portion of the ,shell carrier piston 'cylinder, a pipe to the upper portion of the shaft cylinder, a source of pressure supply, an exhaust, clutch mechanism controlling therotation of the feed shaft, and means to simultaneously connect said pipes with either the air pressure or exhaust and either oiepate the clutch to engage or release the ia' t.

8. In a machineof the character described, the combination withthe cylinder and the shell carrier lifting piston therein, the hopper and feeding screw. shaft therein, the shaft cylinder and piston therein, and connection between said piston and shaft, of a pipe to the lower portion of shell carrier piston cylinder, pipe to the upper portion of shaft cylinder, a pipe leading to lower portion of last mentioned cylinder, a source of pressure supply, an exhaust and means to simultaneously con- ,nect the first two mentioned pipes with exhaust, and the last mentioned pipe with the pressure supply.

9. In a machine of the character described, the combination with'the cylindei" and the shellcarrier lifting piston therein, the 116 )per and feeding screw shaft therein, the s aft cylinder and piston therein, and connection between said shaft and piston, of a plpe to the lower portion of shell carrier piston cylinder. I

a-pipe to the upper portion of shaft cylinder, and a pipe leading to lower portion of last mentioned cylinder, a source of pressure supply, an exhaust and means to simultaneously connect either the first two mentioned. pipes with exhaust, .and the last mentioned pipe with the pressure supply, or the first two mentioned pipes with the pres sure supply and the last mentioned pipe with the exhaust.

10. In a machine of the character described, the combination with the cylinder and theshell carrier lifting piston therein, the hopper and feeding screw shaft therein, the shaft cylinder and piston therein, and connection between said shaft and pipe to the lower portion of siell carrier piston cylinder, a pipe to the upper portion of shaft cylinder, a source of pressure supply, an exhaust a connection to the pressure supply common to both pipes, and a valve controlling said connection, adapted in its movement to either open said connection with the ressure supply or with the exhaust, clutch s iifting mechanism for the screw feeding shaft and connection between'said valve and clutch shifting mechanism whereby they operate simultaneously.

117 In a machine of the character de scribed, the combination with thecylinder and the shell carrier lifting piston therein, the hopper and feeding screw shaft therein, the shaft cylinder and piston therein, and connection between said shaft and piston, of a pipe to the lower portion of shell carrier piston cylinder, a pipe to the upper portion of shaft cylinder, a source of pressure supply, an exhaust a connection to the pressure supply common to both pipes, and avalve controlling said connection, adapted in its movement to either open said connection with the pressure supply or with the exhaust, I

a pipe leading to the ower portion of the last .mentioned cylinder, a connection between said pipe and the pressure supply, a valve on said connection, oppositely set to other mentioned valve, and adapted in its movement to connect the lower iortion of shaft cylinder with exhaust or with source of pressure supply, clutch shifting mechanism for the screw feeding shaft and connection between said valve and clutch shifting mechanism "whereby they operate simultaneously.

12. In a machine of the character described, the combination, with the shell car rier lifting piston, of a pressure supply pipe, a valve cylinder, a passage from said pressure supply pipe to said valve .c ylinder, an indicator, a passage from the valve cylinder to the indicator, a valve in said cylinder, a passage through said valve adapted in one position of iston, of a i the valve to connect the passage froin pres hereunto set my hand; at Paulsboro', on this I sure sugply pipe 851d assage tolingicataorgl a 5th day of March, 1907. spring etween sa'i va ve and cy in er, an a projection from the shell carrier lifting piston WILLIAM D ONALD 5 adapted, in its movement in one direction, to Witnesses:

move said valve, com ressing the said s ring. W. G. GO GILL, In testimony of w 'ch invention, I have E. E. WALL. 

